You should avoid manually installing DLLs. Instead, you should install them using their official installers. You can find the ones required for Plutonium linked in the common launcher issues post: https://forum.plutonium.pw/topic/6832/common-launcher-issues-solutions
For this error, try the fix from my comment here: https://forum.plutonium.pw/topic/28379/please-help-error-bo1-crash-when-lanching/14